Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Journal of Applied Sciences
  Year: 2002 | Volume: 2 | Issue: 12 | Page No.: 1050-1056
DOI: 10.3923/jas.2002.1050.1056
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Heat Transfer in Noble Gases Using Direct Simulation Monte Carlo Technique (DSMC)

Mohamed M. Elafify , Khalil M. Elawadly , Sherif G. Elsharkawy and M. Bassiouny

Abstract:
Heat flow, temperature and density distributions in rarefied gas between two plates at rest with different Knudsen number values are analyzed using Direct Simulation Monte Carlo technique. The molecules are considered as hard sphere ones while the gas boundaries are diffusive surfaces. The results of the technique are compared to different methods. A sample problem of Hellium gas between two plates at rest is used as basis for such comparison. The temperature ratio had been taken as 1.3265. The heat flow comparison shows a good agreement with 4-moment and Ohwada methods for Knudsen numbers higher than 0.2. The Direct Simulation Monte Carlo results fluctuate around the continuum solution for Knudsen numbers lower than 0.2. These statistical fluctuations were less than 15%. The temperature and density profiles show the wall jumps for Knudsen numbers higher than 0.2. These non-continuum effects are noticeable for Knudsen number equal to 1.0. For Knudsen numbers lower than 0.2, these non-continuum effects disappear.
PDF References Citation Report Citation
How to cite this article:

Mohamed M. Elafify , Khalil M. Elawadly , Sherif G. Elsharkawy and M. Bassiouny , 2002. Heat Transfer in Noble Gases Using Direct Simulation Monte Carlo Technique (DSMC). Journal of Applied Sciences, 2: 1050-1056.

DOI: 10.3923/jas.2002.1050.1056

URL: https://scialert.net/abstract/?doi=jas.2002.1050.1056

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 

Curve Bottom